"The Mutants Are Revolting" is the twelfth episode of the sixth season of the American animated sitcom Futurama and is the 100th episode of the series. It aired on Comedy Central on September 2, 2010, as a mid-season finale, with remaining episodes broadcast in November 2010 and in 2011. In the episode, the Planet Express crew celebrate their 100th delivery. Leela's status as a mutant is exposed to the public and she is deported from the surface and forced to live with other mutants in the sewers. She recognizes the inequality with which mutants are forced to live and rallies them together in an equal rights revolt against the surface dwellers. The episode was written by Eric Horsted and directed by Raymie Muzquiz. Mark Mothersbaugh of the band Devo guest stars as himself, while the band appears as future mutated versions of themselves. Having the 100th episode as the sixth-season finale was a coincidence. The production team sought to focus the episode's subject matter on a topic with roots in the series' history. They eventually chose to write about Leela's mutant heritage, which had been one of the series' longstanding storylines. "The Mutants Are Revolting" received generally positive reviews from critics. Although recognized as an unlikely landmark for Futurama by critics due to its previous cancellation, the episode was criticized for failing to live up to its status as the series' 100th episode. Devo's guest appearance is one of co-producer and head writer David X. Cohen's favorite moments in the series. Plot The crew is hired for their 100th delivery and Bender plans the "party of the millennium". The wealthy widow Astor invites Fry and Professor Farnsworth to a fundraiser for mutant education. Leela notices that Astor and the socialites want to distract the mutants from their living conditions and social inequality. Fry accidentally reveals Leela as a mutant illegally living on the surface, and she is banished to the sewers. While attempting to appeal to Mayor Poopenmeyer on Leela's behalf, the crew is banished to the sewers for two weeks for harboring a mutant. In the sewers, the crew finds the wreckage of the Land Titanic, a luxury land bus that sunk into the street in 2912 after striking a mailbox on its maiden voyage, with Astor's husband among the ship's dead passengers. They find the original passenger manifest and a priceless quantum-force from Astor's husband to his wife.